Zhu Liyong, Wang Jun
Image Processing and Image Communications Key Lab., College of Telecommunications & Information Engineering, Nanjing Univ. of Posts & Telecomm, Nanjing 210003, China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2010 Dec;27(6):1229-32.
In our laboratory, the normal ECG signal, the ECG signals of ventricular tachycardia (VT) and of ventricular fibrillation (VF) are studied with the use of Hurst index value. The Hurst index values of the normal ECG signal, VT, VF are calculated separately. There exist obvious differences among the Hurst values of the three kinds of signals,but they are all higher than 0.5 which is a value indicating the long-term relevant character. The long-term relevant character of the normal ECG signal is the best, and the character of VT is better than that of VF. Therefore, the Hurst Index can be used as an identification criterion for distinguishing normal ECG, VT and VF.
在我们实验室中，利用赫斯特指数值对正常心电图信号、室性心动过速（VT）心电图信号和心室颤动（VF）心电图信号进行了研究。分别计算正常心电图信号、室性心动过速和心室颤动的赫斯特指数值。三种信号的赫斯特值存在明显差异，但均高于0.5，该值表明具有长期相关性特征。正常心电图信号的长期相关性特征最佳，室性心动过速的特征优于心室颤动。因此，赫斯特指数可作为区分正常心电图、室性心动过速和心室颤动的识别标准。
